Signal input and output converter



FIG. 1 shows a front view of a signal input and output converter showing my new design;

FIG. 2 shows a rear view thereof;

FIG. 3 shows a top view thereof;

FIG. 4 shows a bottom view thereof;

FIG. 5 shows a right side view thereof; and,

FIG. 6 shows a left side view thereof.

The portions of the design shown in broken lines in FIGS. 1 to 6 are for the purpose of illustrating the environment only and form no part of the claimed design. 

The ornamental design for a signal input and output converter, as shown and described. 